“This power bloc is actively trying to take our sovereignty, but conspiracy theorists say the other power bloc will do that and become a superstate, so we’d bet

“This power bloc is actively trying to take our sovereignty, but conspiracy theorists say the other power bloc will do that and become a superstate, so we’d better stick with the one whose leader has literally threatened to invade us” would be a weird take for Canada. No-one’s talking about Canada joining the EU. And ah, leaving the EU is fairly obviously possible; see the UK.